baber/WOPTO huggingface dataset:
Patent GB-876968-A (GB)
Title: Improvements in the production of polyvinyl chloride and copolymers containing vinylchloride
IPC: C08F2/18
Filed: 1959-01-16
Abstract: 876,968. Vinyl chloride suspension polymerization. CHEMISCHE WERKE HULS A.G. Jan. 16, 1959 [Aug. 14, 1958], No. 1624/59. Addition to 876,967. Class 2(6). In a modification of the process of the parent Specification, the partial ester of an aliphatic polyalcohol (ingredient (b) of the suspension agent mixture) is replaced by 0À001%-2% by weight of the monomer(s) of a mixed ester of a C 2 - 12  aliphatic carboxylic acid wherein one acid group is esterified with an aliphatic polyhydric alcohol and the remaining group(s) with an aliphatic C 1-20  monohydric alcohol. Acids mentioned are oxalic, malonic, succinic, adipic, maleic, fumaric, aconitic, and citric acids. Polyhydric alcohols mentioned are ethylene, propylene and butylene glycols and polyglycols, glycerin and tri- and higher poly-glycerins, and pentaerythritol. Monohydric alcohols mentioned are ethanol, methanol, the propanols and butanols and fatty alcohols such as stearyl and lauryl alcohols.
Patent GB-901040-A (GB)
Title: Improvements in or relating to the polymerization of ethylene
Inventor: TURNER JOHN MICHAEL
IPC: C08F4/34
Filed: 1959-01-16
Abstract: Solid polyethylenes are prepared by subjecting ethylene to pressures greater than 500 atmospheres and temperatures of from 10 DEG C. to 220 DEG C. in the presence of an unsymmetrical diacyl peroxide having the general formula R.CO.O.O.CO.R1 wherein R and R1 differ from one another but are both radicals selected from alkyl, cycloalkyl, alkyl-substituted cycloalkyl and cycloalkyl-substituted alkyl groups. Acetyl lauroyl, iso-butyryl lauroyl, 2-ethylhexanoyl lauroyl, pivalyl lauroyl, methylcyclohexylcarbonyl lauroyl, acetyl caprylyl, palmitoyl 3,5,5-trimethylhexanoyl, and cyclopropylacetyl lauroyl peroxides are mentioned.  The process, which may be carried out batchwise or continuously, may be effected in the additional presence of a chain transfer agent such as hydrogen, a saturated hydrocarbon or a chlorinated hydrocarbon.  The peroxides may be prepared as described in Specification 901,041.  Specification 462,165 also is referred to.
Patent GB-719021-A (GB)
Title: Improvements in or relating to metal band fastenings for packages and the like
IPC: B65D63/04
Filed: 1953-01-20
Abstract: 719,021. Metal band fastenings. TIMMERBEIL, P., TIMMERBEIL, H., and TIMMERBEIL, E. Jan. 20, 1953, No. 1651/53. Class 146(2) In a metal band fastening for binding packages, bales &c. of the kind in which two longitudinal tongues 3 stepped on both lateral sides and lying one above the other are cut and bent or pressed out of the overlapping ends 1, 2, of the metal band, forming a pair of approximately zig-zag shaped slots 5, and the tongue of one band is drawn by the side portions 4 of its broader section into the slots of the other band end, two pairs of tongue fasteners are provided, each comprising two fasteners arranged successively longitudinally of the band, with the two pairs of fasteners arranged side by side and at the same level on the band. When the tongues are pressed out, the adjacent portions of the band are bent out in the opposite direction. The fasteners can be used for joining separate pieces of band. A band of about 30 mm. or more in width is preferred.
Patent GB-234155-A (GB)
Title: Improved filter or strainer especially applicable to milk and other potable liquids
IPC: B01D35/12
Filed: 1924-01-21
Abstract: 234,155. Seligman, R. Jan. 21, 1924. Filters having sheet filtering materials; filter-presses. -A filter comprises a fixed central body having a flat filter surface, covered by a movable plate at either side and means for supplying the liquid to be filtered to one or other of the filter surfaces as desired. Fig. 21 shows a central body 1 with one movable plate 2 between which and the body is a frame 4 with two filter cloths. The casing of a plug valve is clamped against the side of the body 1 and the plates 2 and frames 4 have offsets with passages corresponding to the ports in the casing of the valve, so that liquid mav be directed to the space between the cloths of the frame 4 and led awav from the chambers 22, 36 formed between the cloths and the body and the plate 2 respectively. Alternatively the valve plug may be turned to supply and discharge liquid to and from corresponding parts on the other side of the central body. The plates 2 and frames 4 are clamped in working position by swing bolts and nuts. They may be hinged to the central body. The frames 4 may be omitted, the filter cloths being then held in recesses in the plates 2. The parts may be made hollow and a heating or cooling medium passed through the cavities.
Patent GB-965669-A (GB)
Title: Improvements in or relating to the maintenance of railway tracks
IPC: E01B27/02
Filed: 1961-01-16
Abstract: 965,669. Ballast levelling and ploughing machines. MANNIX CO. Ltd. Jan. 16, 1961, No. 1730/61. Addition to 965,668. Heading E1G. An under track ballast handling machine comprises an inclined blade or a pair of swept back blades which is/are movable between a ploughing position in which it/they extend(s) downwardly and forwardly and a levelling position in which it/they extend(s) downwardly and rearwardly, the sweep back angle of the blade(s) being such that in the ploughing position ballast is deflected to a side of the machine. As shown, Fig. 1, a plate 11 movable on under runners (not shown) and carrying upper runners for lifting track and sleepers has hinged to it boards 40-43 which carry blades 50-53. The blades are mounted at a swept back angle of between 30 and 45 degrees to the centre line of the plate and are independently adjustable about hinges 44, 45, 48, 49 by means of hydraulic cylinders 55-58, controlled by marker cylinders 71. Admission of hydraulic fluid to a cylinder such as 56, Fig. 6, causes the piston 60 to move the blade 51 to a levelling position. Further admission of fluid causes the blade to move to a ploughing position (not shown) in which it extends upwardly and rearwardly from its lower edge. In this position, the blades sweep the ballast off the sides of the roadbed. A flap 80 hinged to the forward part of the plate 11 for movement about a vertical axis is retained in the position shown in Fig. 1 during levelling and may be swung to the side of the roadbed on which there is an excess of ballast during ploughing, a pin 83 being located in one of the holes 85. A blade 86 levels the centre of the roadbed. Specification 793,759 and U.S.A. Specification 2,921,390 also are referred to.
Patent GB-764429-A (GB)
Title: Improvements in or relating to venturi gas washing apparatus
IPC: B01D47/10
Filed: 1955-01-20
Abstract: 764,429. Washing gases. CHEMICAL CONSTRUCTION CORPORATION. Jan. 20, 1955 [Feb. 5, 1954], No. 1736/55. Class 55 (2). A gas washer embodying a venturi passage comprises a throat section 5 with vertical side walls 3, 4, an expansion section with diverging walls 6, 7 and a contraction section with converging walls 8, 9 the inner ends 10, 11 of which are spaced from the throat to accommodate pivotally mounted blades 20, 21. Pivot shafts 22, 23 project through stuffing boxes to the top and bottom walls of the passage and are connected to a lever or to gearing for rotation to adjust the angular position of the blades from a maximum opening in which the blades are parallel to the throat sides. Scrubbing liquid jets are admitted through openings 17, 18 to project horizontally across the throat. Flexible seals 27, 28 pressing against strips 30 welded to the blade shafts to make a sliding contact prevent the passage of gas round the upstream ends of the blades. Adjustment of the blades may be effected automatically in response to variations in the rate of flow of gas entering the passage. Specification 655,038 is referred to.
Patent GB-594552-A (GB)
Title: Improvements in or relating to thread guide traverse mechanisms for artificial silk spinning machines
IPC: B65H54/32
Filed: 1945-01-23
Abstract: 594,552. Traverse mechanism for spinning- machines. NIKLES, P. A. Jan. 23, 1945, No. 1821. Convention date, Jan. 4, 1944. [Class 120 (ii)] [Also in Group XXIX] In a thread guide traverse mechanism for artificial silk spinning-machines producing thread packages, thread guides are connected with the actuating piston of a liquid pressure engine (see Group XXIX), the length of travel of which is controlled by cam means so as to control the form of the thread packages. As shown, thread guides 36 on carrier rods 31, 35 are connected by wires 29, 32 to reciprocating piston rod 28, springs 33 being interposed between wires 32 and piston rod 28 to obviate intermittent motion due to play in the working parts. The length of stroke of piston rod 28 is controlled by the cooperation of pin 41 and fork 40, the position of the latter being controlled by cam 51 which may be operated manually by handle 54 or automatically via driving gears 55, 56. Bobbins 1 may be driven via shaft 4 and worm gears 3 or in the reverse direction via shaft 6 and worm gears 5.
Patent GB-780466-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/46
Filed: 1956-01-20
Abstract: 780,466. Rotary pumps. WALSH, W. Jan. 20, 1956, No. 1924/56. Class 110 (2). A pump of the gyratory-piston type has the actuating shaft 16 and cam or eccentric 15 isolated from the working chamber by means of a fixed flexible tube 7, Fig. 1. The tube is secured to end covers 8, 9 by joints which are gas and water tight. In Fig. 2, suction and delivery ports 1A, 1B are separated by a rubber or like flexible abutment 2 which may have a metal tip on its free end where it engages the rubber rotor 3. A metal sleeve 6 is secured to the tube 7 and provides a running surface for the rotor 3. The tube may be of oil-resisting rubber or other flexible substance. The eccentric 15 revolves freely in a sleeve 14, fixed in the bore of the tube 7. End plates 4, 5 are provided. Fig. 3 shows another arrangement in which the rotor is actuated by a shaft 19 which is supported in bearings 21, 22. Further pumping chambers may be arranged axially, separated by plates. In a further modification, Fig. 4 (not shown), the flexible tube is moulded integrally with the rotor or displacer.
Patent GB-558095-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/18
Filed: 1942-02-13
Abstract: 558,095. Electron multipliers. BOSCH, F. J. G. VAN DEN, FFENNELL, H. S., MOLYNEUX-, and VACUUM-SCIENCE PRODUCTS, Ltd. Feb. 13, 1942, No. 1966. [Class 39 (i)] In electron multipliers of the kind in which the electrodes are of plate-like form arranged parallel to one another, the capacity between two of the electrodes is determined by an additional platelike electrode inserted between them. In the arrangement shown, the cathode 18 is a tube containing a heater 20 and mounted between ceramic discs 19, 27, with the control grid 26 as described in Specification 547,945. Between the cathode structure and the accelerating electrode 38 is disposed an annular plate 34 electrically connected to the cathode, and separated by air or other dielectric from the accelerating electrode which is electrically connected to the next secondary emitting electrode 40. The discs 19, 17 accelerating electrode 38, secondary electrodes 40, 45, and collecting electrode 49 are arranged as described in Specification 531,541 and mounted on rods 10 of insulating material as described in Specification 547,971. Specification 558,109 also is referred to.
Patent GB-1082604-A (GB)
Title: Improvements in or relating to gas burner jets
IPC: F23D14/48
Filed: 1965-01-15
Abstract: 1,082,604. Gas burners. GEO. BRAY & CO. Ltd., and A. WESTERMAN. Jan. 6, 1966 [Jan. 15, 1965], No. 1982/65. Heading F4T. A non-aerated gas jet producing a fan-shaped flame comprises a brass body 1 formed with a top channel 3 the sides 4 and 5 of which flare away from the ends of a slot orifice 6 situated in the base of the recess. The ratio of the orifice length to width to depth is 4: 2:1 and the height of the recess is ten times the depth of the slot. The angle included between the sides of the recess may be 70 degrees and the approach angle of the jet be 15-20 degrees. The upper surface of the jet is convex. In another embodiment, Fig. 4 (not shown), a ribbon burner (8a) is formed at its upper surface with an axially raised portion (9) in which are situated orifices (10) producing fan-shaped flames at right-angles to the burner axis. Superstructures (11) placed over these orifices have deep recesses (12) which are dimensioned so that together with the orifices jets are formed similar to those of Fig. 1.
Patent GB-1385132-A (GB)
Title: Process of polymerising poly-allylic compounds
IPC: C08F12/28
Filed: 1973-01-15
Abstract: 1385132 Polymerizing poly-allylic compounds COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANISATION and ICI AUSTRALIA Ltd 15 Jan 1973 2029/73 Heading C3P  A process of polymerizing a material containing from 3-100% by weight of one or more amines containing two or more allyl groups comprises exposing said material to high energy radiation at a dose rate of between 10 rads/hr. and 5 megarads/hr. at a temperature. from -80‹ to + 120‹ C. and at a pressure from 1000 to 100,000 p.s.i., and isolating the product' as a polymer salt. Exemplified allylic amines include aliphatic compounds, such as triallylamine and diallylamine, and aromatic compounds, such as N-(4-N,N-dimethylaminomethylbenzyl)diallylamine and N - (4 - N,N- diallylaminomethylbenzyl) diallylamine. The amine may be polymerized in salt form, e.g. the hydrochloride salt. The high energy radiation may be gamma rays,.beta rays (from isotopes or electron accelerators), neutron rays, accelerated heavy particles or X-rays. Polymerization is suitably effected by a precipitation technique, e.g. in an aqueous acetone medium, to produce a polymer of quasi-spherical particles of mean diameter 0À5-10 microns, which polymer is useful as an ion exchange resin. A larger bead product can be obtained by dispersion polymerization, e.g. in water/benzene using ethylcellulose as dispersion stabilizer.
Patent GB-874095-A (GB)
Title: Improvements in drill stands
Inventor: SHERWEN THEO
IPC: B25H1/00
Filed: 1959-01-20
Abstract: 874,095. Securing handles on shafts. HORSTMANN & SHERWEN Ltd. Feb. 1, 1960 [Jan. 20, 1959], No. 2081/59. Class 80 (2). [Also in Group XXII] The handle 36 of a feed spindle 31 on a drilling machine is releasably secured to either end of the spindle by a pin 37 which engages an aperture 39 in the spindle. The pin is disengaged when a knob 40 secured to the pin, is depressed against a spring 38.
Patent GB-310394-A (GB)
Title: Improvements in conveyor belts
IPC: B65G15/42
Filed: 1928-01-24
Abstract: 310,394. Partridge, H E. Jan. 24, 1928. Flat endless-belt conveyers; belts modified for troughing.-A conveyer belt 1, Fig. 1, which when in use has the sides 5 turned up to form a trough, Fig. 3, has a series of projections 4 formed on the upper surface of its centre portion 3. Each side portion 5 has a series of downwardly extending corrugations 6 which preferably taper away before they reach the beaded edges 2. The projections 4, 6 may be formed by vulcanizing or otherwise securing strips of rubber to a flat belt. The belt may be made partially or wholly of indiarubber or asbestos which may be reinforced by fabric or by metal gauze. In a modification the transverse corrugations or ribs have their ends of tapering form and are spaced from the edges of the belt.
Patent GB-1148837-A (GB)
Title: Web guide apparatus
IPC: B21C47/34
Filed: 1967-01-16
Abstract: 1,148,837. Feeding webs. GPE CONTROLS Inc. 16 Jan., 1967 [7 Feb., 1966], No. 2232/67. Heading B6B. [Also in Division G3] Apparatus for centring a moving web 10 comprises (a) web-edge sensing devices 12, 14, which may be photo-electric, pneumatic, or mechanical, each attached to the piston 24, 30, of an hydraulic cylinder 26, 32, the cylinders being connected hydraulically in series so as to move the devices 12, 14 equal distances; (b) servomechanism 18 responsive to the device 12 and controlling the cylinders 26, 32 to move the devices 12, 14; (c) servo mechanism controlled by the device 14 for operating a centring roll for the web; and (d) means whereby if one of the pistons 24, 30 moves a greater distance than the other due to leakage, hydraulic fluid is admitted to or withdrawn from one of the cylinders to restore the equal movements of the pistons. As shown, movement of one sensing device is accompanied by an equal but opposite movement of the other. A pneumatic signal from device 12 due to a variation in web width passes to a jet-pipe amplifier 18 and causes pressure in line 20 to cylinder 26 to increase and pressure in line 28 to decrease for a signal in one sense, and the converse for a signal of the opposite sense. The piston 24 is thus moved with its sensing device 12 to the right or to the left according to the sense of the signal. Because of the connections 20, 22, 28 between the cylinders 26, 32 and the amplifier 18, the piston 30 and its sensing device 14 move the same distance as the piston 24 but in the opposite direction. The sensing device 14 is connected by a servomotor to a web positioning device comprising a conventional web-steering roll which operates so that the edge of the web adjacent to sensing device 14 tends to follow or track that device. To order that the movements of the two pistons 24, 30 should remain the same should leakage of fluid occur, devices are provided to maintain the volume of fluid to the left of the pistons and in the pipe 28 constant. These devices comprise a housing 36 mechanically connected to the piston 24 and carrying a pivotal arm 42 with a spring 44 attached. The lower end of the arm 42 is attached to a cable 52 passing over a pulley 51 and connected at its other end to the piston 30. The arm 42 is situated between two electric switches 38, 40, closure of which operates valves 54, 56 connected to drain or pressure supply respectively. Normally, with equal movements of the pistons, the arm 42 remains centrally between the switches 38 without operating either. If leakage occurs to the left of piston 30, causing piston 30 to move to the left relative to piston 24, the arm 42 engages switch 40 and operates valve 56 to supply fluid to the left of piston 30 and restore the balance. If leakage occurs to the right of piston 30, switch 38 and valve 54 are operated to drain fluid from the left of piston 30 to restore the balance. Specification 937,084 is referred to.
Patent GB-466673-A (GB)
Title: Answer back device for teleprinter systems
IPC: H04L12/06
Filed: 1936-01-24
Abstract: 466,673. Type-printing telegraphy. LORENZ AKT.-GES., C..Jan. 24, 1936, No. 2294. Convention date, Jan. 30, 1935. [Class 40 (iii)] An " answer-back " device provided in a type-printing telegraph for the automatic transmission of a predetermined message, comprises an arrangement of cams acting directly on the transmitting contacts, the key mechanism being locked during the running down of the device. Release of answer-back device. The device is set into operation by depression of the key lever 29 which through pawl 30 operates lever 31 to remove a detent from disc 35 on the shaft 38 and to release the lever 32 for the step-by-step rotation of shaft 38 through. pawl 33 and ratchet wheel 34. The lever 29 is locked in its lower position. by the engagement of a pawl 36 with a recess in the lower end of lever 31. At the same time the main camshaft 11 is released for rotation through levers 7, 8 and lever 37 is operated to lock .the ordinary combination setting levers to free the cam-operated members 4 and lock the keyboard. Thereafter, each rotation of the camshaft 11 advances the wheel 34 one tooth through the reciprocation of the lever 32 by lever 14 and cam 15 and the character transmitted by the operation of contacts 13 by the members 4 is determined by notches on the discs 39 arranged on the answer-back shaft 38. At the end of one revolution of the shaft 38 the detent on lever 31 drops into the notch on disc 35, to release the key lever 29 and thus restore all the moving parts to rest. Control of answer-back device by distant subscriber. The distant subscriber sends a case-shift signal which by movement of the member 23 releases the detent 24 from the lever 25, and then a character signal which releases the pull rod 22 to be raised by the printer bar 20. This results in the release of detent 27 by actuation of the lever 26 to allow the rise of rod 28 and hence the depression of the key bar 29 by the lever 25. Disablement of answer-back device during signal transmission. During each normal rotation of the cam shaft 11- the bar 14 is lowered by the cam 15 allowing the lever 16 to rotate and slide a detent rod 18 through lever 17 to release a stop member 21 to prevent the pull rod 22 from being actuated.
Patent GB-732585-A (GB)
Title: Improvements in or relating to electroplating apparatus and contactor therefor
Inventor: HOLMES ALVIN WILLIAM
IPC: C25D17/00
Filed: 1953-01-27
Abstract: 732,585. Apparatus for electrolytic treatment of continuous lengths. INDIANA STEEL & WIRE CO. Jan. 27, 1953, No. 2347/53. Class 41. An electrolytic appar. tus in which a long article is moved lengthwise into, through and out of an electrolyte and serves as one electrode, comprises a tank containing the electrolyte, a second electrode immersed in the electrolyte but spaced from the long article, and a contactor which in operation has sliding engagement with the long article beneath the surface of the electrolyte and which at its place for engagement with the long article is made predominantly of metal having atomic weight between 85 and 190 and in a heavy-metal sub-group of Groups IV, V and VI of the periodic system. The metal may be, in order of preference, tungsten, tantalum, columbium, molybdenum, zirconium or hafnium. The apparatus may be used for treating metal wire, sheet or strip; particularly for electroplating with zinc, especially from an ammoniacal solution such as a zinc-tetramine salt. or with cobalt, nickel, cadmium, copper, chromium or tin. The apparatus may also be used for electro-cleaning and electro-polishing, especially when the contactor surface is of tungsten, tantalum, columbium or molybdenum. Wires may be treated by passing them through a tank 10 (Fig. 1) containing electrolyte 11, stationary electrodes 15 and contactors 20 with which the wires 12 are in sliding contact. A contactor consists of an engaging portion 21 (Fig. 3), embedded in an inertmetal sheath 22, as of lead, surrounding a conducting bar 23, as of copper or silver. Specifications 509,577 and 591,866, and Australian Specifications 127,534 and 128,420 are referred to.
Patent GB-113635-A (GB)
Title: Improved Manufacture of Steel.
Inventor: KELLER CHARLES ALBERT
IPC: C21C5/52
Filed: 1917-02-17
Abstract: 113,635. Keller, C. A. Feb. 17, 1917. Cast-iron and scrap processes.-Steel is obtained by melting iron and steel turnings and similar light scrap in one or more electric furnaces, maintained full of turnings and a basic slag, the metal being run off at fixed intervals into an open-hearth, electric furnace, or converter used as a finishing furnace. The electric furnaces used for melting the scrap are of a known kind with a non-carburizing hearth, such as, for instance, those described in Specifications 15271/02 and 21741/08, [Class 39, Electric lamps &c.]. A basic slag of suitable composition contains lime 50 per cent., silica 35 per cent., and alumina 15 per cent. An amount of carbon, regulated so as to give to the metal a proportion of carbon exceeding that desired in the finished steel, is added to the charge in the electric melting furnaces; the basic slag in the melting furnaces is thus kept free from iron oxide, and desulphurization of the metal is stated to be effected, and, by basic-oxidizing working of the finishing furnace, the percentages of carbon and phosphorus are reduced.